package shayu.seckill.scheduled;

import lombok.extern.slf4j.Slf4j;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import shayu.seckill.service.SeckillService;

import java.util.concurrent.TimeUnit;

@Slf4j
@EnableScheduling
public class SeckillSkuScheduled {
    @Autowired
    private SeckillService seckillService;

    @Autowired
    private RedissonClient redissonClient;

    private final String uploed_lock="seckill:upload:lock";

    // TODO 幂等性处理
    @Scheduled(cron = "0 * * * * * ?")
    public void uploedSeckillSkuLatest3Days(){
        // 1. 重复上架无需处理
        log.info("上架秒杀信息");

        // 分布式锁
        RLock lock = redissonClient.getLock(uploed_lock);
        lock.lock(10, TimeUnit.SECONDS);
        try{
            seckillService.uploadSeckillSkuLatest3Days();
        }finally {
            // 失败也解锁
            lock.unlock();
        }
    }
}
